XXX Remove nawk(1)

@@ -94,11 +94,11 @@
                 CLIENTS=`echo $i | /usr/bin/sed -n -e 's/,/ /g' \
                     -e '/:/s/^.*://p'`
                 /usr/sbin/etrn -b $SERVER $CLIENTS >/dev/null 2>&1 &
         done
 
-        if /usr/bin/nawk 'BEGIN{s = 1}
+        if /usr/xpg4/bin/awk 'BEGIN{s = 1}
             $2 == "/var/mail" && $3 == "nfs" && $4 !~ /actimeo=0/ &&
             $4 !~ /noac/{s = 0} END{exit s}' /etc/mnttab; then
 
                 /usr/bin/logger -p mail.crit "$ERRMSG1"
                 /usr/bin/logger -p mail.crit "$ERRMSG2"